Tracking velocity information

ABSTRACT

Systems and methods for tracking velocity information. One system includes an application execution server providing an application layer. The application execution server is configured to receive a request including metadata. The application execution server is also configured to generate and transmit a response to the request. The application execution server is also configured to enrich the metadata by structuring the metadata for further processing by a data processing layer, where the further processing includes determining velocity information associated with the metadata, and by supplementing the metadata with available historical velocity information. The application execution server is also configured to transmit the enriched metadata for further processing by the data processing layer.

FIELD

Embodiments described herein relate to tracking velocity information,and more particularly, to tracking velocity information related torequest metadata.

BACKGROUND

Information about the frequency at which a particular data attribute hasbeen observed (velocity information) may be used by machine learningmodels in a fraud prevention context. For example, velocity informationmay be used by machine learning models in order to determine whether agiven request is fraudulent, such as an authentication or authorizationrequest. However, for large scale applications receiving a high volumeof requests, recording velocity information at scale and accurately isdifficult and is often a source of increased operational overhead andstrain on a system.

SUMMARY

Embodiments described herein provide methods and systems for trackingvelocity information, for example, they are designed to be highlydecoupled and provide support for large volumes of requests.Additionally, the embodiments described herein provide interfaces forreal-time, near-time, and historical processing in both asynchronous andsynchronous interfaces. Accordingly, embodiments described herein mayreduce the operational overhead of tracking request metadata for machinelearning while providing enhanced precision and functionality through adecoupled design that leverages a single source of truth (for example, adata warehouse). Latency for real-time or near-real-time applicationsmay be improved through the use of database or event stream lookups.Additionally, embodiments described herein provide global scale machinelearning solutions that leverage request metadata at high requestvolumes, such as at a rate of approximately 10,000,000 requests persecond, as a result of the decoupled design described herein.

One embodiment provides a system for tracking velocity information. Thesystem includes an application execution server providing an applicationlayer. The application execution server is configured to receive arequest including metadata. The application execution server is alsoconfigured to generate and transmit a response to the request. Theapplication execution server is also configured to enrich the metadataby structuring the metadata for further processing by a data processinglayer, where the further processing includes determining velocityinformation associated with the metadata, and by supplementing themetadata with available historical velocity information. The applicationexecution server is also configured to transmit the enriched metadatafor further processing by the data processing layer.

Another embodiments provides a method for tracking velocity information.The method includes accessing, with a data processing server, anenriched request event associated with enriched request metadata, wherethe enriched request metadata is structured in a key/value structure.The method also includes determining, with the data processing server,velocity information for the enriched metadata associated with theenriched request event, where the velocity information represents afrequency of at least one data attribute of the enriched metadata. Themethod also includes transmitting, with the data processing server, thevelocity information for storage.

Yet another embodiment provides a non-transitory, computer-readablemedium storing instructions that, when executed by an electronicprocessor, perform a set of functions. The set of functions includesreceiving a request including metadata. The set of functions alsoincludes generating and transmitting a response to the request. The setof functions also includes enriching, with the application layer, themetadata by restructuring the metadata. The set of functions alsoincludes writing an enriched request event to an event stream layer, theenriched request event including the enriched metadata. The set offunctions also includes accessing, with a data processing layer, theenriched request event. The set of functions also includes determining,with the data processing layer, velocity information for the enrichedmetadata associated with the enriched request event, the velocityinformation representing a frequency of a data attribute of the enrichedmetadata. The set of functions also includes transmitting, with the dataprocessing layer, the velocity information for storage.

Other aspects of the embodiments described herein will become apparentby consideration of the detailed description and accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of a system for tracking velocity informationaccording to some embodiments.

FIG. 2 is a block diagram of a server of the system of FIG. 1 accordingto some embodiments.

FIG. 3 is a block diagram illustrating a tiered application patternprovided by the system of FIG. 1 according to some embodiments.

FIG. 4 is a flow chart of a method of tracking velocity informationusing the system of FIG. 1 according to some embodiments.

Other aspects of the embodiments described herein will become apparentby consideration of the detailed description.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Before embodiments of the invention are explained in detail, it is to beunderstood that the invention is not limited in its application to thedetails of construction and the arrangement of components set forth inthe following description or illustrated in the accompanying drawings.The invention is capable of other embodiments and of being practiced orof being carried out in various ways.

Also, it is to be understood that the phraseology and terminology usedherein is for the purpose of description and should not be regarded aslimiting. The use of “including,” “comprising” or “having” andvariations thereof herein is meant to encompass the items listedthereafter and equivalents thereof as well as additional items. Theterms “mounted,” “connected” and “coupled” are used broadly andencompass both direct and indirect mounting, connecting and coupling.Further, “connected” and “coupled” are not restricted to physical ormechanical connections or couplings, and may include electricalconnections or couplings, whether direct or indirect. Also, electroniccommunications and notifications may be performed using any known meansincluding direct connections, wireless connections, etc.

A plurality of hardware and software based devices, as well as aplurality of different structural components may be utilized toimplement the embodiments described herein. In addition, embodimentsdescribed herein may include hardware, software, and electroniccomponents or modules that, for purposes of discussion, may beillustrated and described as if the majority of the components wereimplemented solely in hardware. However, one of ordinary skill in theart, and based on a reading of this detailed description, wouldrecognize that, in at least one embodiment, the electronic-based aspectsof the embodiments described herein may be implemented in software (forexample, stored on non-transitory computer-readable medium) executableby one or more processors. As such, it should be noted that a pluralityof hardware and software based devices, as well as a plurality ofdifferent structural components, may be utilized to implement theembodiments described herein. For example, “mobile device,” “computingdevice,” and “server” as described in the specification may include oneor more electronic processors, one or more memory modules includingnon-transitory computer-readable medium, one or more input/outputinterfaces, and various connections (for example, a system bus)connecting the components.

It should be understood that although certain drawings illustratehardware and software located within particular devices, thesedepictions are for illustrative purposes only. In some embodiments, theillustrated components may be combined or divided into separatesoftware, firmware and/or hardware. For example, instead of beinglocated within and performed by a single electronic processor, logic andprocessing may be distributed among multiple electronic processors.Regardless of how they are combined or divided, hardware and softwarecomponents may be located on the same computing device or may bedistributed among different computing devices connected by one or morenetworks or other suitable communication links.

FIG. 1 is a block diagram of a system 100 for tracking velocityinformation according to some embodiments. In the example shown, thesystem 100 includes a plurality of customer servers 105 (referred toherein collectively as “the customer servers 105” and individually as“the customer server 105”) and an application network 110. In theillustrated example, the application network 110 includes a gatewayserver 115, an application execution server 120, an event stream server125, a data processing server 130, a velocity database 135, an eventdatabase 140, and a models database 145 (referred to herein collectivelyas “the one or more components of the application network 110”). In someembodiments, the system 100 includes fewer, additional, or differentcomponents than illustrated in FIG. 1 . For example, the system 100 mayinclude a different number of customer servers and the three customerservers 105 included in FIG. 1 are purely for illustrative purposes.

The customer servers 105 and the application network 110 (including theone or more components of the application network 110) arecommunicatively coupled via a communication network 150. Thecommunication network 150 is an electronic communications networkincluding wireless and wired connections. Portions of the communicationnetwork 150 may be implemented using a wide area network, such as theInternet, a local area network, such as a Bluetooth™ network or Wi-Fi,and combinations or derivatives thereof. Alternatively or in addition,in some embodiments, components of the system 100 communicate directlywith each other as compared to communicating through the communicationnetwork 150. For example, in some embodiments, the gateway server 115,the application execution server 120, the event stream server 125, thedata processing server 130, the velocity database 135, the eventdatabase 140, and the models database 145 communicate directly with eachother over one or more wired communication lines or buses, asillustrated in FIG. 1 . Also, in some embodiments, the components of thesystem 100 communicate through one or more intermediary devices notillustrated in FIG. 1 .

The customer server 105 may be a computing device and may include adesktop computer, a terminal, a workstation, a laptop computer, a tabletcomputer, a mobile device, or the like. As illustrated in FIG. 2 , thecustomer server 105 includes an electronic processor 200 (for example, amicroprocessor, an application-specific integrated circuit, or anothersuitable electronic device for processing data), a memory 205 (forexample, a non-transitory computer-readable medium or another suitablememory device), and a communication interface 210. The electronicprocessor 200, the memory 205, and the communication interface 210communicate wirelessly, over one or more communication lines or buses,or a combination thereof. The customer server 105 may includeadditional, fewer, or different components than those illustrated inFIG. 2 in various configurations. For example, although not illustrated,the customer server 105 may include a human-machine interface includingone or more input devices, one or more output devices (for example, adisplay device), or a combination thereof.

The electronic processor 200 is configured to access and executecomputer-readable instructions (“software”) stored in the memory 205.The software may include firmware, one or more applications, programdata, filters, rules, one or more program modules, and other executableinstructions. For example, the software may include instructions andassociated data for performing a set of functions, including the methodsdescribed herein.

The communication interface 210 allows the customer server 105 tocommunicate with devices external to the customer server 105. Forexample, as illustrated in FIG. 1 , the customer server 105 maycommunicate with the application network 110 through the communicationinterface 210. In particular, the communication interface 210 mayinclude a port for receiving a wired connection to an external device(for example, a universal serial bus (“USB”) cable and the like), atransceiver for establishing a wireless connection to an external device(for example, over one or more communication networks 150, such as theInternet, local area network (“LAN”), a wide area network (“WAN”), andthe like), or a combination thereof.

The customer server 105 may provide an application (or service) to auser (for example, an end user, a group of users, an organization,another user entity, and the like). The user may interact with thecustomer server 105 either directly or indirectly via one or moreintermediary devices (not shown). In some embodiments, the customerserver 105 is part of a computing network, such as a distributedcomputing network, a cloud computing service, or the like. In suchembodiments, the customer server 105 may communicate with theapplication network 110 as part of providing a cloud-based service to auser using a user device (not shown). Alternatively or in addition, thecustomer server 105 may be a user device used directly by a user tointeract with the application network 110. In some embodiments, thecustomer server 105 interacts with the application network 110 (via, forexample, the communication network 150) to leverage or accessapplication functionality supported or provided by the applicationnetwork 110. For example, in some embodiments, the application network110 supports a web application, such as a financial servicesapplication, that provides financial services such that a user mayaccess a corresponding user account to interact with and managefinancial transactions, services, data, and the like. Alternatively orin addition, the application network 110 may support a web applicationproviding supplemental functionality for a different application, suchas supplemental security functions or mechanisms for a financialservices application. A user (for example, an end user) may access theapplication supported by the application network 110 (through a browserapplication or a dedicated application stored on the customer server 105that communicates with the application network 110) and interact withthe application via a human-machine interface associated with thecustomer server 105.

As noted above and illustrated in FIG. 1 , the application network 110includes the gateway server 115, the application execution server 120,the event stream server 125, the data processing server 130, thevelocity database 135, the event database 140, and the models database145. However, in some embodiments, the application network 110 includesadditional, fewer, or different components than illustrated in FIG. 1 invarious configurations.

Alternatively or in addition, in some embodiments, the functionality (ora portion thereof) described as being provided by the applicationnetwork 110, one or more components of the application network 110, or acombination thereof may be distributed among multiple networks, devices,servers, and the like. Alternatively or in addition, in someembodiments, the functionality (or a portion thereof) described as beingprovided by the application network 110, one or more components of theapplication network 110, or a combination thereof may be combined into asingle device or server. For example, in some embodiments, theapplication network 110 may include a single device or server (forexample, an application server) configured to provide the functionalitydescribed herein as being provided by the one or more components of theapplication network 110.

Although not illustrated, the gateway server 115, the applicationexecution server 120, the event stream server 125, the data processingserver 130, the velocity database 135, the event database 140, and themodels database 145 may include similar components as the customerserver 105 (an electronic processor, a memory, and a communicationinterface). However, in some embodiments, the gateway server 115, theapplication execution server 120, the event stream server 125, the dataprocessing server 130, the velocity database 135, the event database140, and the models database 145 includes additional, fewer, ordifferent components.

In some embodiments, the application network 110 has a multitierapplication architecture (or a multilayer application pattern). Forexample, as illustrated in FIG. 3 , the application network 110 mayinclude a gateway layer 350, an application layer 360, a data storagelayer 370, a data processing layer 380, and an event stream layer 390.In some embodiments, the application network 110 may include additional,different, or fewer layers than illustrated in FIG. 3 in variousconfigurations. Additionally, each layer may include additional,different, or fewer components than illustrated in FIG. 3 in variousconfigurations.

As seen in FIG. 3 , the gateway layer 350 may include the gateway server115. The functionality described herein as being performed by thegateway layer 350 may be performed by the gateway server 115 (via anelectronic processor executing instructions). The gateway layer 350functions as an entry point to the application network 110. In someembodiments, the gateway layer 350 serves as the only publicallyaccessible entry point to the application network 110. As such, thegateway layer 350 is configured to receive one or more requests from thecustomer server 105 and process the received requests, and, ultimately,trigger application functionality (via the other layers of the tieredapplication pattern). Accordingly, in some embodiments, the gatewaylayer 350 contains or functions as an application programmable interface(“API”) gateway. In some embodiments, the gateway layer 350 includesmultiple technology components incorporated into a single layer thatserves a functional purpose. For example, the gateway layer 350 mayinclude technology components that implement edge security technology,enforce encryption protocols, and the like.

The application layer 360 may include the application execution server120. The functionality described herein as being performed by theapplication layer 360 may be performed by the application executionserver 120 (via an electronic processor executing instructions). Theapplication execution server 120 executes (or performs) application orproduct functionality that supports an underlying application of theapplication network 110. The functionality may include, for example, thebusiness logic for handling and responding to incoming requests from thegateway server 115. Alternatively or in addition, the functionality mayinclude enriching metadata of a received request.

The event stream layer 390 may include the event stream server 125. Thefunctionality described herein as being performed by the event streamlayer 390 may be performed by the event stream server 125 (via anelectronic processor executing instructions). The event stream server125 provides event stream processing. Request events are streamed intothe event stream layer 390 (for example, from the application executionserver 120, the gateway server 115, or a combination thereof). A requestevent streamed into the event stream layer 390 may be stored in theevent database 140 for further processing with the data processing layer380 (via the data processing server 130). The event stream layer 390(the event stream server 125 may include an event aggregation component(not shown) that aggregates events for bulk or batch processing by, forexample, the data processing server 130.

The data processing layer 380 may include the data processing server130. The functionality described herein as being performed by the dataprocessing layer 380 may be performed by the data processing server 130(via an electronic processor executing instructions). The dataprocessing server 130 is configured to access and process one or morerequest events from the event database 140. In some embodiments, thedata processing server 130 is configured to process a request event todetermine velocity information for request metadata associated with therequest event. Velocity information refers to count information about afrequency at which a particular data attribute has been observed. Suchdata attributes include an Internet Protocol (IP) address, a proxy IPaddress, a header, a query string, a post body, and the like. The dataprocessing server 130 may transmit the velocity information to, forexample, the velocity database 135 for storage. As noted above, in someembodiments, the data processing server 130 accesses multiple requestevents for bulk or batch processing. Accordingly, the data processinglayer 380 may utilize the notion of notifications and queues to createfan out capabilities. Accordingly, the data processing layer 380 mayinclude a notification component (not shown) and a queue component (notshown). For example, when request events are fanned out, the requestevents may be processed multiple times by different compute functions.

The data storage layer 370 may include the velocity database 135, theevent database 140, and the models database 145. In some embodiments,the data storage layer 370 may include additional, fewer, or differentcomponents or databases than those illustrated in FIG. 3 in variousconfigurations. For example, in some embodiments, the velocity database135, the event database 140, the models database 145, or a combinationthereof may be combined within a single database or distributed amongmultiple databases. As noted above, the event database 140 may storerequest events associated with the requests received at the gatewayserver 115 and the velocity database 135 stores velocity information.The models database 145 stores one or more machine learning models usedfor performing machine learning functions.

FIG. 4 is a flowchart illustrating a method 400 for tracking velocityinformation according to some embodiments. The method 400 will bedescribed with reference to FIG. 3 . As seen in FIG. 4 , the method 400includes receiving a request (at block 405). As noted above andillustrated in FIG. 3 , the gateway server 115 may receive the requestfrom a customer server 105. In some embodiments, the gateway server 115receives the request from the customer server 105 through thecommunication network 150. For example, the gateway server 115 mayreceive the request from the customer server 105 through a virtualprivate network (“VPN”), a public connection (for example, publicinternet), and the like.

A request may include, for example, an authentication request, aretrieval request, an authorization request, a reporting request, a dataprocessing request, and the like. The request received at the gatewayserver 115 may be a real-time request, a near-real time request, or ahistorical request. A real-time request may include a request that isblocking human interaction until a response is to the request isprovided. An example of a real-time request may include a userattempting to purchase a product or service, where the transaction willnot be completed until it is determined that the transaction is notfraud. Another example of a real-time request is a user attempting tolog-in to their user account. A near-time request may be a request thatis not necessarily blocking human interaction but is time sensitive. Anexample of a near-time request may include a user confirming afraudulent transaction associated with an account, where the accountwill be disabled within a period of time (for example, within fiveminutes of the user confirming the fraudulent transaction). A historicalrequest may include a request for reporting or batch analysis purposeson historical data. An example of a historical request may include adashboard interface or display showing historical data. Another exampleof a historical request may include a merchant requesting a report ofpast fraudulent requests based on one or more criteria, such as locationinformation or a specified time period or lookback period.

After receiving the request from the customer server 105, the gatewayserver 115 processes the request to determine routing for the request.For example, as seen in FIG. 3 , the gateway server 115 may transmit therequest to the event stream server 125, the application execution server120, or a combination thereof. The gateway server 115 may determinerouting for a request based on a characteristic of the request, such asa request type, request metadata, and the like.

In response to receiving the request from the gateway server 115, theapplication execution server 120 generates and transmits a response tothe request (at block 407). In other words, in response to receiving therequest from the gateway server 115, the application execution server120 performs application functionality associated with the request(i.e., the underlying application supported by the application network110) and generates and transmits the response based on the performanceof the application functionality. In some embodiments, the applicationexecution server 120 performs the application functionality using themetadata associated with the request. Alternatively or in addition, insome embodiments, the application execution server 120 accesses the datastorage layer 370 as part of performing the application functionality.Accordingly, the application execution server 120 may access thevelocity database 135, the models database 145, another component of thedata storage layer 370, or a combination thereof in order to perform theapplication functionality. For example, the application execution server120 may access a machine learning model from the models database 145 toperform a machine learning function as part of performing theapplication functionality. In some embodiments, the applicationexecution server 120 applies the machine learning model to the velocityinformation stored in the velocity database 135, the metadata associatedwith the request, or a combination thereof in order to perform theapplication functionality associated with the request.

Alternatively or in addition, the application execution server 120enriches metadata associated with the request (at block 410). Theapplication execution server 120 may enrich request metadata bystructuring the request metadata for further processing by the dataprocessing server 130. In some embodiments, the application executionserver 120 structures the metadata as a key/value structure with a keyof “velocity” and a dictionary of associated metadata. A samplestructure may include, for example: { . . . , “velocity”: {“ipv4”:“176.28.48.234”, “geo”: “lat19/long20”, . . . }, . . . }. In thisexample, “velocity” is the key and the dictionary of associated metadataincludes “ipv4”: “176.28.48.234” and “geo”: “lat19/long20”. Thekey/value structure supports various queries of written eventsassociated with the metadata, such as queries for the purpose ofenriching machine learning models.

In some embodiments, the application execution server 120 may enrichrequest metadata by supplementing the request metadata with additionalinformation, such as historical velocity information from the velocitydatabase 135 when available (available historical velocity information).Historical velocity information may include, for example, velocityinformation associated with one or more previously enriched requests.Accordingly, in some embodiments, the application execution server 120enriches request metadata by accessing available historical velocityinformation from the velocity database 135 and supplementing the requestmetadata with the available historical velocity information.

After enriching the request metadata (at block 410), the applicationexecution server 120 writes an enriched request event to the eventstream layer (i.e., the event stream server 125) (at block 415). Inother words, the application execution server 120 generates an enrichedrequest event and transmits the enriched request event to the eventstream server 125. The enriched request event is associated with theenriched metadata (the enriched request). Accordingly, the enrichedrequest event may include the enriched request metadata (for example,the original request metadata and the historical velocity informationsupplemented to the original request metadata).

In response to receiving the enriched request event, the event streamserver 125 processes the enriched request event. In some embodiments,the event stream server 125 processes the enriched request event byperforming event aggregation with one or more request events, as notedabove. The event stream server 125 forwards the enriched request eventto the event database 140 for storage. In some embodiments, the eventstream server 125 also generates and transmits an event notification tothe data processing server 130. In response to receiving the eventnotification, the data processing server 130 may be triggered to accessthe enriched request event (at block 420). In other words, the dataprocessing server 130 may access the stored enriched request event fromthe event database 140. After accessing the enriched request event, thedata processing server 130 determines velocity information for theenriched metadata associated with the enriched request event (at block425). As noted above, velocity information refers to count informationabout a velocity or frequency that a particular data attribute has beenobserved, such as an Internet Protocol (IP) address, a proxy IP address,a header, a query string, a post body, and the like.

As noted above, in some embodiments, the data processing server 130 mayperform bulk or batch processing. Accordingly, in such embodiments, thedata processing server 130 may access more than one request (aggregatedrequests) from the event database 140 and determine velocity informationfor the metadata associated with the requests.

After determining the velocity information (at block 430), the dataprocessing server 130 transmits the velocity information for storage (atblock 435). As seen in FIG. 3 , the data processing server 130 maytransmit the velocity information to the velocity database 135 forstorage. As noted above, in some embodiments, the application executionserver 120 accesses the velocity database 135 to obtain availablehistorical velocity information. Accordingly, in some embodiments, thevelocity information transmitted by the data processing server 130 isstored in the velocity database 135 as historical velocity informationfor a subsequent or new request.

Thus, the embodiments described herein provide, among other things,methods and systems for tracking velocity information.

Various features and advantages of the invention are set forth in thefollowing claims.

What is claimed is:
 1. A system for tracking velocity information, thesystem comprising: an application execution server providing anapplication layer, the application execution server comprising aprocessor and memory, the application execution server configured toreceive a request including metadata, generate and transmit a responseto the request, enrich the metadata by structuring the metadata forfurther processing by a data processing layer, wherein the furtherprocessing includes determining velocity information associated with themetadata, and supplementing the metadata with available historicalvelocity information, transmit an enriched request event associated withthe enriched metadata to an event stream layer, the enriched requestevent including the enriched metadata, wherein the event stream layertransmits the enriched request event to an event database for storage,the event database accessible by the data processing layer, and transmitthe enriched metadata for further processing by the data processinglayer, wherein an event notification from the event stream layertriggers the further processing of the enriched metadata associated withthe enriched request event by the data processing layer.
 2. The systemof claim 1, further comprising: a data processing server providing thedata processing layer, the data processing server configured to accessthe enriched metadata from storage, determine the velocity informationassociated with the enriched metadata, the velocity informationrepresenting a frequency of a data attribute of the enriched metadata,and transmit the velocity information associated with the enrichedmetadata to a velocity database for storage.
 3. The system of claim 2,wherein the data attribute includes at least one selected from a groupconsisting of an Internet Protocol (IP) address, a proxy IP address, aheader, a query string, and a post body.
 4. The system of claim 1,further comprising: a gateway server providing a gateway layer, thegateway server configured to receive the request from a customer server,and route the request to the application execution server.
 5. The systemof claim 1, wherein the application execution server is configured toaccess a machine learning model from a models database and generate theresponse to the request using the machine learning model.
 6. The systemof claim 5, wherein the application execution server is configured togenerate the response to the request using the machine learning modeland at least one selected from a group consisting of the velocityinformation associated with the request, the available historicalvelocity information associated with the request, and the metadataassociated with the request.
 7. The system of claim 1, wherein theapplication execution server is configured to structure the metadata ina key/value structure.
 8. The system of claim 1, further comprising: avelocity database of a data storage layer, the velocity databaseconfigured to receive the velocity information from the data processinglayer after the further processing of the enriched metadata and storethe velocity information, wherein the velocity database is accessible bythe application execution server.
 9. The system of claim 1, wherein theavailable historical velocity information is associated with at leastone preceding request received by the application execution server. 10.A method for tracking velocity information, the method comprising:receiving, with a data processing server, an event notification from anevent stream server: accessing, with the data processing server, anenriched request event stored in an event data base, the enrichedrequest event associated with an enriched request metadata, wherein theenriched request metadata is structured in a key/value structure andwherein the event notification triggers the further processing of theenriched metadata associated with the enriched request event by the dataprocessing server; determining, with the data processing server,velocity information for the enriched metadata associated with theenriched request event, wherein the velocity information represents afrequency of at least one data attribute of the enriched metadata; andtransmitting, with the data processing server, the velocity informationfor storage.
 11. The method of claim 10, wherein accessing the enrichedrequest event associated with the enriched request metadata includesaccessing an enriched request event associated with enriched requestmetadata that is supplemented with available historical velocityinformation.
 12. The method of claim 10, wherein transmitting thevelocity information for storage includes transmitting the velocityinformation to a velocity database of a data storage layer for storage.13. The method of claim 10, wherein accessing the enriched request eventincludes accessing the enriched request event from an event database ofa data storage layer.
 14. The method of claim 10, wherein determiningthe velocity information includes determining a frequency of at leastone selected from a group consisting of an Internet Protocol (IP)address, a proxy IP address, a header, a query string, and a post body.15. A non-transitory, computer-readable medium storing instructionsthat, when executed by an electronic processor, perform a set offunctions, the set of functions comprising: receiving a requestincluding metadata; generating and transmitting a response to therequest; enriching, with an application layer, the metadata byrestructuring the metadata; writing an enriched request event to anevent stream layer, the enriched request event including the enrichedmetadata; transmitting, from an event stream layer, an eventnotification to a data processing layer; accessing, with the dataprocessing layer, the enriched request event stored in an eventdatabase, wherein the event notification from the event stream layertriggers the further processing of the enriched metadata associated withthe enriched request event by the data processing server; determining,with the data processing layer, velocity information for the enrichedmetadata associated with the enriched request event, the velocityinformation representing a frequency of a data attribute of the enrichedmetadata; and transmitting, with the data processing layer, the velocityinformation for storage.
 16. The computer-readable medium of claim 15,wherein the set of functions further comprises: receiving a subsequentrequest including new metadata; enriching the new metadata byrestructuring the new metadata, and accessing the velocity informationfrom storage and supplementing the new metadata with the velocityinformation.
 17. The computer-readable medium of claim 15, whereinaccessing the enriched request event includes accessing the enrichedrequest event from a data storage layer.
 18. The computer-readablemedium of claim 15, wherein the set of functions further comprises:accessing, with the application layer, a machine learning model from adata storage layer, and generating the response to the request using atleast one selected from a group consisting of the machine learningmodel, the metadata associated with the request, and availablehistorical velocity information.
 19. The computer-readable medium ofclaim 15, wherein restructuring the metadata includes restructuring themetadata in a key/value structure.